Oil-burner system and apparatus



Feb. '15 1927.

F. MARION OIL BURNER SYSTEM AND APPARATUS 2 Sheet s-Sheet 1 Filed Jan. 28. 1926 w$ 3 .W I W n ma A M J. v a \fi w hm QQ m. R E J m q E Q ufl N om. ea

Feb.

F. MARION OIL BURNE R SYSTEM AND APPARATUS Filed Jan. 28. 1926 2 sheets-sheet 2 INVENTOR.

ATTORJ'VEY Patented Feb. 15, 1927.

FRANK MARION, or BARRE, vnnmonrnns srelvon or ONE-HALF r Enwmn. soo'r'r,

or BARRE,

VERMONT.

e OIL-BURNER SYSTEM AND APBARATUS. 0'

Application filed. January 28, 1926. Serial No. 84,410.

. tion where two or more sources of power are alternatively available,whereby upon failure of one, the other will be automatically set in'operation in the system. It is an important aim to provide. a novel mechanism for accomplishing this change of power and regulating the power in such manner that in case of failure of both, the fuel supply will be cut off.

Anotherobject is to present new 'construc. tion in burner regulating devices.

' Additional objects, advantages and features of invention reside in the construction,

' arrangement and combination of parts, as

will be more readily understood from the following description and the accompanying drawings, wherein,

Figure 1 is a diagrammatic view of the system; Y

m Figure 2 is an elevational view'of the automatic fuel valve; I

Figure 3 is a view of the valve at right angles to Figure 2; I

Figure 4 is a detail sectional view of the valve seat and valves.

There is illustrated a system including the main supply conduit which 'may lead from a source of fuel under pressure or in the case of liquid fuel, either under pressure or fed by gravity. This fuel line leads to the burner 11 which may be installed in a boiler or other furnace 12, as will be more particularly indicated.

In the fuel l'ne there is incorporated an automatic valve device 13, the control and these'are generally familiar in the motor art.

Theshaft 16 of the water motor is also directly driven by means of an electric motor 17 alternatively with the water motor 15,

and a centrifugal governor 18 is mounted upon the shaft 16, the governor being of the usual construction, the details of which are generally understood. The burner 11 may conform to approved construction and practice. A drain pipe 32 leads from the burner at its lower side to drain off any excess unvaporized oil. therefrom in case oil fuel is utilized. The pipe 32 runs to a suitable point of disposal for the waste oil, whichin cludes a pan 33, mounted upon a vertically movable spring'sustain ed support 34 which is connected to a switch 35, so that the switch will be moved to open position'by the weight of oil in the pan 33 after itreaches'a ,predetermined quantity, and the element 34 is also connected to a valve 36 in the water line 37 to the water motor'. The valve 36' is normally mounted'in open position, and will be closed when operated bythe' weight of oil series in the circuit to. the motor,'this' mag net being constructed to attract and hold an armature 41 on alever 42 by which avalve element in the device 13 'is'held in open' position, as will be understood. The lever 42 may, also carry a'switch arm associated I withcontacts as at 43, whereby when the lever 42 is. in operative relation with the magnet40, the circuit to the motor iscompleted thereby, as indicated in Figure 1. o I M Theflvalve device 13 comprises a body 50 having a partition 51 therethrough ported.

on an axis at right angles tothe inletj'and by the diagram Outlet passages of the body,landfhaving valveguiding necks 52, extending in line with the port, in which necks there are slid able the valves, 53 and .54 respectively, at

the. upper and lower sides,lpackings 55 be:

ing provided around the valves, which'arefin the formv of plain rods having, rounded ends .to engage opposite ends of the passage through the partition U shaped frame necks 52,'one arm of each frame being'bifure cated to embrace the neck and having clamp ing screws to draw the furcations of the arms together upon the neck, whereby the frames will be retained securelyinv adjusted positions, upon the necks of the body 50.

pieces;56 are clamped upon each, of the I The outer arm 57 10f each of these frames 7 is apertured to receive the respective valves 53 an i 54 slidably therethroughY On "the r I be actuated without loss of time, and before valve'ea there is a collar 58, and a spring59 is confined between this collar and the arm 57, tending to close the valve. The valve ex- I tends a distance :below the arm 57 and has pivoted thereupon an L-shaped lever. 60, having a short arm 61 adapted to wipe against the lower side'of the arm 57, so

I that when the lever'isswung upwardly, the

arm 61 willbear against the arm 57 and "draw the valve downwardly to open posi tioii..""The arm- 60 is held in raised position byfa 'link 62 connected to the extremity of the lever 42 opposite the armature 41, so

i that when the armature is engaged with the magnet the link' 62 is held in raised position,

holding the valve 5 1 open. The link 62 has engagement with thearm 60 by means of a longitudinal slot 63 in the link, and a lateral pin 64c'on the extremity of the arm 60, which engages the lower end'of the slot 63 and is raised thereby; The linlt62 is engaged by a spring'65 tending to move it to lower position when the magnet is not energized; The arm 60 is held releas ably in raised position by means of a spring+pressedlatch bolt engaging under abill 66,011 the lower side of the arm 6'0, which'has an inclinedfwiper face on the side nexti'the latch, so that when the arm 66 is below the latch and isinoved' upwardly,

the latch will'be pressed" aside for movem'ent o-fv the arm 60 to'initial position. The

' V latchlis Connected by bell cranks and links 7 tov the sliding element of the governor 18, so that at a'pre-determ ned 1'11111111'1111I1l0W' 5 speed, the latch. Willbe withdrawn from' beneath thearmfiti, permit-ting the valve 54:

' to closel' 'V'Thelink62 isextended a distance below the arm 60, and is connected to the arm ofa valve, 68, whereby ,upon interruption of the. electrical circuit to the motor the spring '6l5'will draw the link' downwardly and move the arm 68 for opening of the valve 69, this valvelbeing located in the water main to the, water 'mot'or, so that the motor will then theisp'eed vof'the'faln has dropped tofsuch "n {ex'tentas topermit the valve 54: to be closed" 7 N r v -5fjTheva11ve 53 at the upper side of the automaticjvjalve device 13 is 'controlledby a thermostat 70 on theboiler or other furnace element heatedby the burner 11. It will p 'beunderstood that a pressure responsivede- I movable element of the thermostat is con .nected through the agency of bell-crank vice is the equivalent of the thermostat. The

levers and cables 71 to the upper-end 'of'a spring 72,1;115 lower end of which is connected. to a lever 7 3 pivotedin the body of the upper frame 56, its inner end within i the frame being pivotally. connected to .a

collar 741fi'xed ion the valve 53 and movable freelywithin-the frame 56. 'By this means the valve 53 is moved, increasing tempera- 'A spring 76 is engaged with the lever 73 tending to move it to open position.

A weightedbar 77 is mounted vertically slidable above the pan 33 so that at the lower limit of its movement it willengage within and rest on the pan, and this bar is held releasably in its uppermost position by a sliding latch 7 8, engaged in a notch in the bar and yieldingly held inengaged position by a suitable spring, as shown. A head ed bolt 79 is engaged slidably in the latch 78, the sliding movement of the bolt in the latch being parallel to the direction of the movement'of the latch for disenga'gement of the bar 77 and this bolt is connected to the cable from the thermostat in suchmanner that after movement of the cable a predetermined distance bythe rise of temperature or pressure, the head of the bolt will be drawn up against the bodyiof the latch and thelatch moved thereby under continued operation of the thermostat 70, so as to finally disengage from the bar 77, downward movement of which under its weight will move the pan .33.downwardlyfopening the switch 35 and opening the valve 36' so that under any operationof the fan the motive power Wlll stop, and interruption of the electrical c1rcu1t Wlll'llkBWlSG cause cutting" off of fuel,

as will be understood. 7 V a In the operation of this device, the furnace being cold, thepan '33 'empty, and the blower or fan at rest, in order to start the system, the parts being properly adjusted for initial operation, the switch 35'is closed and thebar 77 raised and engaged with the latch 78",'the switch 78 is closed andfthe' with the armature 41 held by the magnet 40.?

Inthis position of the parts-the valve 36 will be open, the valve 651 closed and the latch 66 retracted. Upon moving the lever.

42't0 operative position, however, thelvalve lever 42 moved to circuit-closin osition device 13 is opened at the lower side, and at r the upperside is already open'as' far as the maximum permitted by the thermostatic control so that fuel may flow totheburner. The pilot light being properly lit in the burner11, air and fuel will be supplied which will be ignited and burnedrin the burner; The operation of the fan will through the governor move the latch 66 to protracted position. The burner may be preheated, if desired,lor the pilot'light 30,

supplied with fuel independently of the valve 13.,throu-gh hand valve 31, arranged to heat the. burner for early vaporization of oil admittedthereto, incase liquid fuel is employed.-

; In case thecircuittothe motor becomes pressure.

supply, the fan will lose momentum and the and therefore the valve 13 will be still open ative to permit flow of fuel for a time. The valve 68 having been open-ed immediately on engagement of the electrical circuit, the water motor will continue the operation of the device if water is available, at proper But in case of failure ofjthe water governor 18 will finally withdraw the latch, permitting the lever to move downwardly, the pin 64 being free to move in the slot 63, and the fuel supply will then be cut 0E. In case of faulty operationof the burner while the fan is properly operated, resulting in failure of the oil to be vaporized, with consequent accumulation of oil in the lower part of the burner, this oil will drain to the pan 33 and if such drainagecontinues to.

an excessive degree the weight of the oil in the pan will finally break the circuit 'to the motor and close the water supply to the water motor. Then, when the speed of the fan has decreased sufliciently the fuel supthe thermostatic valve element of the auto mati valve device 13 is controlled, so that when the fuel supply is cut down by the thermostat the air supply will also be correspondingly decreased, and a proper lIllX- ture' afiorded at all times. Air supplied to the fan may be conducted by an intake conduit from the ashpit of a furnace in which the burner is incorporated, the grate being suitably covered to prevent drawing of flame or burned gases into the ashpit, and under operation of the burner the heated grate will warm the air inthe ashpit so that warm air may be supplied to the fan. Suitable openings are of course provided for access of air to the ashpit as it is withdrawn through the conduit 85.

' I claim:

l. A safety fuel burning system comprising a burner, a liquid fuel supply therefor, an air supply therefor including an impeller means to control the supply offuel, two

' the valve, a detent device: opposing cut-off failure of one when so connected to-operatively connectthe other power source with said impeller, cut off means tending to cut off the fuel supply, means operatively associated with the impeller responsive to its operation to oppose the cut off means, means re-- a sponsive to operation of one power source to positively hold said out off means in in: operative position and tending to move to inoperative position, a yieldingly supported drain collector, means to drain liquid fuel from the burner tothe collector, cut off means for both power sources operatively connected with said' collector for operation by a predetermined quantity of fuel in said collector, an emergency responsive device responsive to conditions consequent upon an abnormal heating action of the burner, a

weighted element movable into said collector,

a detent therefor, and a COIlIlGOtlOIl' between the detent, and saidv emergency responsive device to withdraw the detent.

2. The structure of claim 1 including a fuel supply regulator and connections between theregulator and said emergency responsive device operative through initial stages of movement of the emergency responsive device.

3. The structure of claim 1 in, which-said emergency device is responsive to heat variations, a fuel feedregulator, operative connection's between the regulator and said device responsive to heat variations including a connection yielding'to movement beyond a maximum, an emergency cut off means for both power sources, and a detent having'a lost motion connection with said device'reply conduitte'nding to move to cut-01f 'pov sition, a lost motionconnection between the sa1d means and the fuel valve operative in one position to prevent cut-off movementof movement of the valve, and a speedresponsive device operatively associated with the impeller and'detent to withdraw the detent at a predetermined low speed; I

In testimony whereof I aflix my signature.

FRANK MARION. 

